2131330200021 has 24 divisors (see below), whose sum is σ = 3362540590656. Its totient is φ = 1290145703040.

The previous prime is 2131330200017. The next prime is 2131330200029. The reversal of 2131330200021 is 1200020331312.

2131330200021 is a `hidden beast` number, since 2 + 131 + 330 + 200 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 2131330200021 - 2² = 2131330200017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2131330199967 and 2131330200003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131330200029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12997860 + ... + 13160813.

It is an arithmetic number, because the mean of its divisors is an integer number (140105857944).

Almost surely, 2^{2131330200021} is an apocalyptic number.

It is an amenable number.

2131330200021 is a deficient number, since it is larger than the sum of its proper divisors (1231210390635).

2131330200021 is a wasteful number, since it uses less digits than its factorization.

2131330200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26159513 (or 26159510 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 2131330200021 its reverse (1200020331312), we get a palindrome (3331350531333).

The spelling of 2131330200021 in words is "two trillion, one hundred thirty-one billion, three hundred thirty million, two hundred thousand, twenty-one".